How to Index Complaint Documents
How to create a document index so complaint evidence is easier to follow, review and reference.
Quick Answer
A document index is a numbered list of evidence. It gives each item a short title, date, document type and relevance note. This helps complaint letters and timelines refer to evidence without overwhelming the reader.
Key Takeaways
- Number each document once.
- Use short descriptive titles.
- Record the date and document type.
- Explain why each item matters.
- Use the same document numbers in the timeline.
Step-by-step guidance
Gather the documents in one folder.
Remove duplicates where safe to do so.
Create a numbered list.
Add date, title, type and relevance.
Use those numbers in the complaint letter or timeline.
Practical examples
- Document 4: Installer invoice dated 12 May 2024.
- Document 9: Final response letter dated 3 February 2026.
Common mistakes
- Renumbering documents halfway through a complaint.
- Including every duplicate copy.
- Using vague titles such as email 1, email 2, email 3.
Checklist
- Number each document once.
- Use short descriptive titles.
- Record the date and document type.
- Explain why each item matters.
- Use the same document numbers in the timeline.
Common Questions
Do I need every document before complaining?
No. Start with what you have and record what is missing. Missing evidence can often be requested or explained.
Should I edit evidence before saving it?
No. Keep original copies where possible. Make separate notes or summaries rather than changing the original record.
Where does this fit in the Knowledge Centre?
This guide is part of the Evidence Centre and links back to the main Consumer Rights Knowledge Centre.